Firefighters have put out a van fire near the Copdock Interchange.
It happened just before 7.45am in a layby on the northbound carriageway of the A12 just before the junction.
Two fire crews were sent from Princes Street in Ipswich and a third came from Hadleigh.
Crews wearing breathing apparatus used one hose reel to fight the fire.
The fire was out by 8.14am and traffic is now flowing normally.
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